const fs = require('fs')
const ws = fs.createWriteStream('./2.txt', 'utf8')//可写流
ws.write('111111111111')
ws.write('1111222222222211111111')
ws.write('1111112222222222222111111')
ws.write('111222222222222111111111')
ws.write('11222222222222221111111111')
ws.write('11222222222222221111111111')
ws.write('11222222222222221111111111')
ws.write('11222222222222221111111111')
ws.end()